The book incorporates classical and contemporary theory and research in the field of Developmental Psychology. The author's goal is to provide a textbook that fully covers the educational objectives of the course, as well as the personal interests and needs of students-readers. Emphasis is placed on a lifelong approach to development, examining the entire range of human life, and how biology and the environment are closely intertwined with the developing individual. Commonalities and differences between national groups and cultures are also described, as well as the broader social contexts in which we develop.